distribution patch files

I tried to include a distribution patch file in glib-2.34.0 (options.mk) with:
PATCH_SITES= http://bugzilla-attachments.gnome.org/
PATCHFILES= attachment.cgi?id=224541
PATCH_DIST_STRIP= -p1
and got:
make: don't know how to make /usr/pkgsrc/distfiles/attachment.cgi?id=224541.
Stop
Just in case it's because of the ?, I tried
PATCH_SITES= http://bugzilla-attachments.gnome.org/
UNQPATCHFILES= attachment.cgi?id=224541
PATCHFILES= ${UNQPATCHFILES:Q}
PATCH_DIST_STRIP= -p1
but still no luck:
make: don't know how to make
/usr/pkgsrc/distfiles/attachment.cgi\?id=224541. Stop
What am I missing?
Cheers,
Patrick